Show legend Show as text

Structure type: monomer ; 651 [M-H]-
C₃₆H₆₀O₁₀
Trivial name: sieberoside I
Compound class: triterpenoid glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192

• Article ID: 11387
  Verotta L, Tato M, Toaima SM "Cycloartane triterpene glycosides from Astragalus sieberi" - Phytochemistry 48(8) (1998) 1403-1409
  

  Two new cycloartane saponins were isolated from the aerial parts of Astragalus sieberi. The structures were elucidated by 1D- and 2D- gradient-enhanced NMR analyses and enzymatic hydrolysis as 20(S),24(R)-epoxy-9 beta, 19-cyclolanostan-3 beta,6 alpha,16 beta,25-tetrol-3-O-beta-D-glucopyranoside and 20(S),24(R)-epoxy-9 beta,19-cyclolanostan-3 beta,6 alpha,16 beta,25-tetrol-3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranoside.

  structural elucidation, Leguminosae, Astragalus sieberi, 1D- and 2D-gradient enhanced NMR techniques, 20(S), 24(R)-epoxy-9 beta, 19-cyclolanostan-3 beta, 6 alpha, 16 beta, 25-tetrol glycosides, sieberoside I and II

  Publication DOI: 10.1016/S0031-9422(98)00042-9
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Institutions: Dipartimento di Chimica Organica e Industriale, Università di Milano, Milan, Italy, Pharmacia and Upjohn, Preclinical Research, Biotechnology-Structural Biology, NMR Lab., Nerviano, Italy, Pharmacognosy Department, Faculty of Pharmacy, University of Alexandria, Alexandria, Egypt
  Methods: 13C NMR, 1H NMR, FAB-MS, optical rotation measurement, ROESY, TOCSY, CC, DQF-COSY, extraciton, GHSQC, GHMBC, E-COSY
  
   
  
  Astragalus sieberi
  CSDB ID 61552 (all data & tools)

Show legend Show as text

Structure type: oligomer ; 837 [M+Na]+
C₄₂H₇₀O₁₅
Trivial name: sieberoside II
Compound class: triterpenoid glycoside
Contained glycoepitopes: IEDB_140628,IEDB_142488,IEDB_146664,IEDB_983931,SB_192

• Article ID: 11387
  Verotta L, Tato M, Toaima SM "Cycloartane triterpene glycosides from Astragalus sieberi" - Phytochemistry 48(8) (1998) 1403-1409
  

  Two new cycloartane saponins were isolated from the aerial parts of Astragalus sieberi. The structures were elucidated by 1D- and 2D- gradient-enhanced NMR analyses and enzymatic hydrolysis as 20(S),24(R)-epoxy-9 beta, 19-cyclolanostan-3 beta,6 alpha,16 beta,25-tetrol-3-O-beta-D-glucopyranoside and 20(S),24(R)-epoxy-9 beta,19-cyclolanostan-3 beta,6 alpha,16 beta,25-tetrol-3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranoside.

  structural elucidation, Leguminosae, Astragalus sieberi, 1D- and 2D-gradient enhanced NMR techniques, 20(S), 24(R)-epoxy-9 beta, 19-cyclolanostan-3 beta, 6 alpha, 16 beta, 25-tetrol glycosides, sieberoside I and II

  Publication DOI: 10.1016/S0031-9422(98)00042-9
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Institutions: Dipartimento di Chimica Organica e Industriale, Università di Milano, Milan, Italy, Pharmacia and Upjohn, Preclinical Research, Biotechnology-Structural Biology, NMR Lab., Nerviano, Italy, Pharmacognosy Department, Faculty of Pharmacy, University of Alexandria, Alexandria, Egypt
  Methods: 13C NMR, 1H NMR, FAB-MS, optical rotation measurement, ROESY, TOCSY, CC, DQF-COSY, extraciton, GHSQC, GHMBC, E-COSY
  
   
  
  Astragalus sieberi
  CSDB ID 61553 (all data & tools)